arrayObjectSearch.ts

type Value = Record<string, unknown>

export const arrayObjSearch = <T extends Value>(arr: Array<T>, key: keyof Array<T>[0], target: string): T | null => {
  if (!key) throw new TypeError('You should provide what key to find')

  if (arr.length === 0) return null

  let i = 0
  do {
    const source = arr[i][key]
    if (source === target) return arr[i]
    i++
  } while (i < arr.length)
  return null
}

export const arrayObjIndexSearch = <T extends Value>(
  arr: Array<T>,
  key: keyof Array<T>[0],
  target: string
): number | null => {
  if (!key) throw new TypeError('You should provide what key to find')

  if (arr.length === 0) return null

  let i = 0
  do {
    const source = arr[i][key]
    if (source === target) return i
    i++
  } while (i < arr.length)
  return null
}